Hydrocarbon motor



May 5, 1925.

1,536,330 H. D. CHURCH HYDROCARBON MOTOR Filed March 22, 1918 Patented May 5, 1925.

UNITED sTrEs PATENT oFFlcE.

HAROLD D. CHURCH, 0F DETROIT, IlTICHIGAN, ASSIGNOR T0 PACKARD MOTOR CAR COMPANY, OF DETROT, MICHIGAN, A CORPORATION OF MICHIGAN.

HYDROCARBON MOTOR.

Application filed March 22, 1918. Serial No. 223,949.

T0 all lwhom it may concer/n.'

Be it known that L'HAnoLn D. Ciionoii, a citizen of the United States, and resident of Detroit, Wayne County, State of Michigan, have invented certain new and useful Improvements in Hydrocarbon Motors, of which the following is a specification.

This invention relates to hydrocarbon motors and particularly to valve mechanism therefor.

One of the objects of the invention is to provide comparatively direct operating devices between the cam shaft ofV a hydrocarbon motor and the ends of the stems of the valves thereof. i

Another obj ect of the invention is to provide a novel and compact arrangement of valve operating mechanism atthe ends of the valve stems and between them and the cam shaft. i

Another object of the invention is to provide a valve operating mechanism that may be assembled as a whole before it is placed upon the motor.

Another object of the invention is to provide a convenient adjusting mechanism for the operating devices between the cam shaft and valve stems of a hydrocarbon motor.

Other objects of the invention will appeal' from the following description taken in connection with the drawings which form a part of this specilication, and .in which:

Fig. 1 is a transverse vertical section through a hydrocarbon motor embodying `the invention; and A .F ig. 2 is a transverse horizontal section onthe line 2-2 of Fig. 1.

Referring to the drawings, 1()` represents one of the cylinders of a hydrocarbon motor and it will be understood that while only one cylinder is actually shown in the drawings, the motor is usually made of a block of four or six or more cylinders. The cylinder shown comprises a body portion 11 and a head casting or head portion '12 and the valve mechanism of the invention is shown as mounted wholly in the head portion of the cylinder. The cylinder is shown as of the water jaclreted type and one of the gas passages of the motor is shown at 13. This may be either an inlet or an eX- haust passage and the port 111 and its valve 15 may be for either inlet or exhaust depending upon the function of the passage 13. It will be understood that there is both an inlet and an exhaust port for each cvlin der and a valve 15 for each port, but only one of these is shown in Fig. 1 of the drawings. y

The valve 15 has a stem 16 extending upwardly through the cylinder head and a valve guidel closely fits the valve stein and extends upwardly somewhat above the cylinder. A spring 18 surrounds the valve stein and the upper part of the guide 17 and retains the valve on its seat by reason of its connection with the end of the valve stem through the washer 19 and pin 20, the latter extending through a transverse opening adjacent theupper end of the valve stein. The lower end of the spring 18 abuts against a shoulder 21 formed on the guide 17.

A casing 22 is detachably secured to the cylinder head as by the bolts 23 and it is formed with upper and lower compartments 24 and 25 respectively and with an openingr or passage-way 26 extending between said compartments. Side openings 2T and 28 are formed in the casing `for the two coinpartments respectively, and removable covers 29 and S0 are provided for these openings.

A cam shaft l is supported immediately above the end of the valve stem 16 and a cam 32 is adapted to operate the valve. Preferably the cam shaft is mounted in the casing 22 and extends horizontally through the upper compartment 24. Between it and the upper end of the valve stem are valve operating devices which are supported for sliding movement in the opening or passage 26 above referred to. These devices comprise, in the form of the invention shown, a pair of telescoped sleeves 33 and 34 which are arranged over the upper end of the valve stem and are adjustably connected to getlier as by the threading 35. A miti-36 locks the valves in relatively adjusted position and the lower end of the sleeve 341 is of' heXagon shape as shown at 37. The outer lll) sleeve 33 is fitted in the passage 26 so that it may slide vertically therein and it is formed with a side slot 38 in which apin 39 projects to thereby prevent the sleeve from turning. The pin 39 is accessible from the outside of the casing 22 as shown in the drawing.

The upper ends of the sleeves 33 and 34 are shown closed and the outer sleeve abuts against the cam shaft 31 so that its cam 32 operates directly against it and thus reciprocates the sleeve in its support. rIhe end of the inner sleeve 33 abuts against the upper end of the valve stem 1G and by reason of the connect-ion of the two sleeves the reciprocating movements of the outer sleeve given it by the cam shaft are conveyed to the valve stem and the valve is consequently opened b v thc cam 32 and closed by the spring 1S. The outer sleeve 33 is preferably provided with a small opening which is uncovered when the sleeve is in its lowest position so thatan v oil which may leak through from the upper coinpartmei'it 24 into the sleeve will be drained out of it into the lower compartment. In this connection it is contemplated that oil may be fed into the upper compartment 24 and removed .from the lower compartment to thus keep the parts well lubricated.

From the above description it will be seen thatl the entire valve operating mechanism aside from the valve guide and spring may be assembled in the casing 22 and said casing` may thenbe readily placed upon the motor by carefully inserting the valve stem in the lower end of the inner sleeve 34. IVhen the casing is rigidly connected to the motor cylinder the mechanism is in operative position.

It will also be observed that the mechanism may be adjusted by removing the covers 2S) and 30 for observing the space between the cani shaft and the upper end of the sleeve and relatively adjusting the sleeves 33 and 3ft through the opening 28 of the compartment It will be understood that various modifications may be made within the scope of the claims without departing from the spirit of the invention.

I-Iaving thus described my invention, what I claim and desire to secure by Letters Patent is l. In a hydrocarbon motor, the combination with a motor cylinder having a valve, of a casing secured to said cylinder and comprising two compartments connected by an opening, said valve having a stem extending through one of said con'ipartnients and said opening into the other compartment, a cam shaft in the latter said compartment, a sleeve surrounding said valve stem and mounted in said opening and having a closed end in contact with said cam shaft, and adjustable screw threaded means connecting said sleeve with the end of said valve.

2. In a hydrocarbon motor, the combination with a motor cylinder having a valve, of a casing secured to said cylinder and comprising two compartments connected by an opening, said valve having a stem extending through one of said compartments and said opening into the other compartment, a cam shaft in the latter said compartment, a sleeve surrounding said valve stem and mounted in said opening and having a closed end in Contact with said cam shaft, a device in contact with the end of said valve stem and adjustably connected to said sleeve, and means permitting the adjustment of said device relative to said sleeve accessible from one of said compartments.

3. In a hydrocarbon motor, in combination, a cylinder head having a valve therein with its stem extending upwardly, a casing over said stem, a pair of telescoped sleeves having closed ends and adjustably secured together over the valve stem and supported by said casing, and a cam shaft operating against the end of one of said sleeves. I

4. In a hydrocarbon motor, in combination, a cylinder having a valve therein, a spring for closing said valve, a pair of telescoped sleeves adjustably secured together over the valve stem and over said spring', the inner of said sleeves being in contact with the end of said valve, and a valve operating Ailevice acting against the outer sleeve.

5. In a hydrocarbon motor, the combination with a. valve, and a cam shaft for operating the valve, of a pair of telescoped sleeves surrounding` the valve stem and adjustably connected together, the inner of said sleeves having a closed end in contact with the end of the valve stem and the outer of said sleeves having a closed end in contact with the cam shaft.

(i. In a hydrocarbon motor, in conibination, a cylinder head having a valve therein, a f'al've spring surronxuling the stem of the valve, a sleeve siu'roumling the spring and valve stem and having a. closed end in contact with the end of the valve stem, a second sleeve surrounding the first sleeve and connected to the latter adjacent its open end and a cam shaft adapted to operate against the second sleeve.

7. In a hydrocarbon motor, in combination, a cylinder head having a valve therein, a valve spring surrounding the stem of the valve, a sleeve surrounding` the spring and valve stem and having a closed end in contact with the end of the valve stem, a second sleeve surrounding the first sleeve and connected to the latter adjacent its open end and a cam shaft adapted to opeate lllll against the second sleeve, said second sleeve having a closed end adjacent the closed end of the rst sleeve.

8. In a hydrocarbon motor, in combinal'on, a cylinder head having a Valve therein7 a easing mounted on the cylinder head and having an opening surrounding said valve stem, a pair of adjustably connected Sleeves surrounding said Valve stem and the outer sleeve adapted to slide in said opening, the inner of said Sleeves cooperating with said valve stem, and a cam shaft operating on the outer of said sleeves.

In testimony whereof I a-'Hix my signat l 1re.

HAROLD D. CHURCH. 

